NEW SmartyKat StringFling Motorized String Cat Toy w/Batteries CATS LOVE IT! Door knob spinning cat toy Cats need exercise, too, and what could be more fun for your favorite feline than this spinning string toy? Hang it on any doorknob, turn it on, and the string tail spins wildly for irresistible, non-stop play. Designed to stimulate cat's natural predatory nature and promotes healthy activity. Two AAA batteries included. Size : 2.25"W x 4" H Brand New & Sealed